Agricultural implement.



A. c, LINDGRBN. AGRICULTURAL IMPLEMBNT.

APPLICATION FILED NOV.11.1908.

966,568. l APatente@ Aug.9,191o.

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AGRICULTURAL IMPLBMBNT,

APPLIUATION FILED NOV. l1. 1908.

Patented Aug. 9, 1910.

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A. C. LINDGRBN. AGRIGULTURAL IMPLBMENT.

APPLIUATION FILED NOV. 11, 1908.

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A. C. LINDGREN. AGRICULTURAL IMPLBMBNT. APILIOA'II'IONPILED NOV.1l. 190B.

966,568. Patented Aug. 9, 1910.

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A. G. LIN-DGREN. AGRICULTURAL IMPLBMENT.

APPLICATION FILED NOT/.11, 190B. I

Patented Aug. 9, 1910. v e SHEETS-SHEET 5.

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A. G. LINDGREN. AGRICULTURAL IMPLEMEN T. APPLloATIoN 11mm Nov. 11, 190s.

966,568. y Patented Aug. 9,1910.

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, smerig ALEXUS C. 'LINDGREN, 0F FIGLINE, ILLINOIS, ASSIGNOR TO MOLINE PLOW COIVIPAIIKTY,v A. CORPORATION 0F ILLINOIS.

herein as applied to a double-row lister plow..

' The objects of the invention are to provide a machine which will plow or plant simultaneously a plurality of rows at a desired depth while operating on even or uneven ground; to provide at the same time for operating the various plowing or other corresponding devices at different depths when desired7 and also for maintaining them substantially in' theirl relative positions when passing over uneven ground; to provide a machine which is suiiiciently strong to meet the duties placed upon it While being at the same time of light weight and therefore of easy draft. These and other objects of inf Vention are in part more fully set forth herein and will be in part obvious to those skilled in the art.

The invention consists 1n the novel parts, constructions, arrangements, improvements and combinations' herein shown and -described.

The accompanying drawings, referred to herein and forming a part hereof, illustrate one embodiment of the invention, the saine serving in connection with the descriptiony herein toexplain the principles of the: invention.

Of the drawings: Figure l is a front elevation of-a machine constructed in accordance with the principles of the invention; Fig. 2 is a plan 'view corresponding generally to Fig. 1; Fig. 3 is a side elevation with outer ground wheel removed; Fi 4 is a vertical longitudinal section'on the ine 'we-w of F ig. vl, and Fig. 2; Fig. 5is a perspective View of the frame, axles and certain co.

operating parts; Fig. 6 is an enlarged detail v iewon the line g/-y of Fig.' 2; and Fig.'7 isa fragmentary plan view corresponding to Fi .r6 with certain parts shown in section. o

efei'ring to the accompanying -drawings, Whichliustrateby Way ofexample an einbodimefit4 et invention, tiiiee'support- `Specification of Letters Patent. lApplication led November 11, 1908. Serial No. 462,064.

.slightly separated in order Patented Aug. o, ioio.

ing and progressing members are shown, one of said members being centrally located with respect to the other two. Said members are shown as ground Wheels l and 2, with the wheel 3 located centrally thereof, and they are further shown substantially in alinement transversely ofthe machine.

Flexible connections are provided between the ground w-heelsl, 2 and 3 for the purpose of permitting relative vertical movement between them as they' progress over the surface of the ground. rl`he wheels land 2 'are mounted onthe stub ends of the offset axles 4 and 5, respectively. The. central ground Wheel Sis mounted or carried in the member 6 of a frame extending longitudinally of the machine. This frame member is shown yoked about the axle of the wheel (see especially Figs. 2 and 7 'The inward ends of the axles 4 and 5 take'into the frame member 6, as shown at 7, and are securedin any suitable manner, as by a bolt and nut 8. The apertures in the frame member `6 are larger than the axle, thus affording play of the parts to permit the relative vertical movement` between the Wheels.

According to one feature of the invention the frame4 member 6 has an angular movement in a substantially vertical direction.

.In the present embodiment it is pivotally I`connected to frame member 19 as will` be more fully set forth hereinafter. The axles 4 and 5 have a corresponding movement. Means for; securing said movement of the axles with the frame are provided, and in the illustrated form thereof, there is shown' carried upon the .squared part 9 ofthe axle 5 an arm l0, the end thereof being bent and passing through an aperture 11 in the frame member 6'.y The aperture 1l is proportioned tive movement ofthe wheels as they pass over the ground, While causing the axle to move With the yoke in its angular adjustment. A suitable fastening device may be used to prevent accidental Withdrawal of the arm 10 lfrom the aperture ll, and a linch pin 12 is shown for this purpose. In the di'aW-v ings also the end of the axle 5 is shown conveniently bushed in the hub of .the arm 10 which is lshown passing ture 7. In Fig. 5 said parts are showny to more clearly show the construction.

According to one feature of the invention,

95 and shaped so as to permit the desired rela-4 n V through the apermeans are provided for changing the angular relation oi the vertically `adjustable frame member and an otset axle', and a frm of such means is shown in the drawings applied to the axle it. VFixed to said axle is shown an arm 13 connected by a link 14 to the lever 15, pivoted on the bracket 1G carried by the frame member G. The lever 15 is provided with a spring latch mer-ln anism 18 which coperates with the. rack 17 to hold the lever in position.

A frame member 19 is jointed to the frame member 6 so as to permit adjustment to different relative angles. In the d 'awings herewith' the frame member 19 is shown as comprising' longitudinally extending members 20 and 21 connected by a cross brace 22. The frame member 19 is further shown con nected to the member 6 by transverse, horizontal pivot bearings, and for this purpose the forward ends of the members 2O and 21 are shown pivotally lconnected at either side of the yoke 6 and secured by suitable bolts 23. Theother end of the trame member 19 is supported nponsuitable devices, shown.

The lever 27 engages by a suitable spring latch 28 with the rack 29 iixed to said member 21. Sultable lifting springs 30 and 31 lare, provided to assist the operator in adjust-ing the machine. vThey are connected to said frame member (S and also to the rear of the frame, and tend to draw the frame members together about ltheir pivot, thus assisting in the raising and acting to yieldingly resist the lowering movement. YThe spring 3() is further shown connected to the arm 13.

It thereby acts to assist also `in the o eration ot' the lever 15 in changing the align ar relatiofn of the axle it and fra-me member 6.

' The plows are supported so as to be raised or lowered as the operator causes the jointed frame members to open out from, or to close in toward, each other. In the drawings plows 32 and 33 are shown at either side of the center ot' the machine and their beams 34 and. 35 are shown loosely suspended from the offset parts of the axles 5 and 6, respectively, so as to have movement relative there` to yboth longitudinally and transversely of the machine. By such mounting the plws may be kept in a horizontal position both longitudinally and transversely of the ma chine.

To control the movements ot the beam to preserve the level of the plow longitudinally of the machine, an arm 3G fixed with refer; ence to the plow beam is shown extending of the plow when desired. Corresponding 'v I parts 38 andt) are shown for the other plow beam. Fixed with respect to the plowbeams are shown brackets 4() attached rigidly to a cross rod 11, which serves to hold the plows in proper relation with one another. By means of this rod and the. mounting ofthe plow beams upon the axles so as to permit of movement transversely of the machine, the plow bottoms may be' maintained parallel. j

A construction is provided whereby a suitable part of the weight carried by the frame is thrown upon the .outer ground wheels while at the same time permitting the relative vertical movement therebetween due to inequalities in theground. This serves to distribute the strains to whichthe machine'is subjected, and also makes the outside wheels available for driving the seeding mechanism or other parts.' In the form ot such construction shown herein the caster wheels 24 are vertically swivclcd in blocks 42to which are fixed bars 43, saidv bars being also movablyconnected to the axles 4 and 5. The rear end of the frame 19 vis shown pivotally connected to the blocks 42. In the illustrated form of such pivot connection, member 19 is shown fixed at 44 and 45 to the rod-t6 which bears pivotally inthe blocks 42. Itwill thus beseen that free movement ot the frame parts'is permitted but at the same time a roper proportion of the weight of the mac line parts and of the operator is transmitted to the outer ground wheels whilel permitting freedom of .movement at the flexible connections between the axles and the frame member 6.

The mechanism hereinbefore describedris shown as giving support to seed hoppers 47` and 18, containing seed distributing mechanism not shown, and adapted to be-o,eratedvfrom the ground wheels. Such seem ing mechanism per se forms no partv of the present invention. Y

It. will be understood that when the oper ator moves the lev'er/ 27 forwardly, the sectors 26 and E25 will operate to increase the angle-between the parts v( and-19 ot the frame, thus causing a lowering of the fralne andv connected parts.v The supporting rod 4G ywill turn in lts bearings in the block 42, as the frame member 1t) swings, thus ermitting free movement of the frame wiile serving to carry and distribute the weight in the. manner heretofore described. `The offset part of the axles 4 and 5, b reason of .l

their connections to the yoke G wi l also have and-ifwill likewise be lowered. When the lever-QZ is -moved in the opposite direction, themeverse vmovement of the parts takes p1ac`e,-as will be clearlyunderstood. The 5 pl'owslbeing supported from the oiset parts of the axles, they will be raised or lowered with the corresponding movement of the mechanism just described. The plows will be maintained in their'longitudinal positions 150 by the mechanisms described. lVhen it is` desired to change the relative depth between the two plows, this may be effected by movementozE-the lever and the cooperating mechanisms hereinbefore described. As I5; hereinbefore stated,the litfing spring 30 is connected so as to assistin the operation of both-levers. `It will be seen further that the operation of these-parts does not interfere with thel action of the exible connect-ions between the ground wheels.

a The use of the third wheel, that is the central -ground wheel, gives 'a double row ma chine without the expense and weight of a singleframe between two outer wheels which 25: wouldlbe strongenough to support two listersff The flexible frame, furthermore, keeps eachrl plow at the proper depth, as it accom- In'odat'es itself to irregularities in the surface `of the ground, .asv each of the-three ground awlieelsmay run high or low 4with respect to the o'th'eiitwo, dependent upon the variations of the surface In Fig. 1 the central ground .wheelis'shown running on relatively high ground, but itwill be understood that each fgou'ndwheel possesses capability of following-the'jsurface whether the level be above orfbelow with respect to either of the other ground wheels or both of them. The con- `strt'ictio'n of frame hereinbefore described whereby an approximately proportionate part of the weight is transmitted through the frame members 43, throws about the same load on each of the front Wheels, thus facili- ,tating' said'tleirible action, distributing the strains fallin upon the machine frame, and bestowing ot er advantages.

The invention, in its broader aspects, is not limited to the particular constructions shown', nor to any particular constructions 5'()l by which it has been or maybe carried into eii'ect, as'many changes may be made in the construction without departing from the vmain principles of the invention and withoutfsacrificing its chief advantages, 5'5" Whitt@ do claim asmy invention and desireft ksecure by Letters Patent-isz I` nfcombination withthree supporting Imemberfsppne of said members being cen- '-trallylocated with respectto the other` two,

6d" ilegible, connections between said three membersgto ,relativeverticalymovement of one i'saidmnrembers W,ithrespect to the ot nd.

2. -Inv "combination with threev ground y wheels substantially part of the axle.

thereto, a caster wheel supporting j the re'aif plOvi/E Sllpmltedgbetween each m01 ilhesldfmsmhers andthe central. memben.

wheels, one located centrally of the others, ieXible `connections between said'wheelsv to permit vertical movement of one of thel wheels with respect to another, and a plow carried on either side of the central wheel and between it and the corresponding outer wheel. 4

3. In combination with three ground wheels, substantially in alinement' trans- V versely of the machine, onelocated centrally" of the others, flexible connections. between said wheels to permit vertical movement lot' one of the wheels with respect to another,

and a plow carried on either side of the cen-Qr tral wheel and between it and the corre- 30 spending outer wheel. y,

`4. In combination with three's'upporting members, one'of said members being een` trally located. with respect to the other two, lexibleconnections between said three menibers to permit yof verticalmovement of one of said members with respectto the. other, a plow supported between eacliof the side members and the central member, and meansll for raising and'lowering the plow with re- 90Y spect to the supporting and progressing members. y w

5. In combination with three ygrouinl in alinement ,trans-` f versely of the machine, axles for the wheelsge having offset parts, plows supportedA 'at either side of the cent-ral wheel on said offset i parts of the axles, supporting and progressing means-located outof alinement with. said wheels, and means for rotating said oit-f set portions vertically to raise and lowert the plows. l i

6. In combination with three ground wheels substantially in alinement trans-,- versely of the machine, axles for the wheels.y having oiset parts, plows supported at either side of the central wheel on said oifset, parts of the axles, supporting and progress-` ing means located out of alinement with said wheels, means for rotating said offset portions vertically to raise yand lower the. plows, and a plow suspended from the oiiset 7. In combination with a central grounc wheel, a frame member in which said wheelis mounted, a rear frame member .jointed thereto, a caster wheel supporting-V the rean. frame member, means for adjusting said` frame members to different Vrelative'angles, a ground wheel at either side of 'said central y12o ground wheel, and connections between the three ground wheels. w y i if 8. In combination with. a centralground' wheel, a frame member in which said wheel:vvr f ismounted, a rear frame member jointederlZ frame s member, fmeans:A fon `1adjulsting jsai frame i members to different relative* ai" a groundnwheel ateither sideofsaidlicentialai e@ 4ground. wheel, flexible connections between- 130 the three ground-wheels so as to permit relato said lframe member by a flexible oonnec tive vertical movement thereof, and a plow tion yto permit vertical movement Iof one suliported at either side of Athe central l wheel with respect to another, a connection ground wheel and between it andjthe outside between said axle and said frame so that the j ground wheels. axle may swing to and fro vertically with 70 9. In combination with a central ground the frame, and a plow supported on each of. wheel, a frame member in which said wheel said offset. parts of the axle. is mounted. a rear frame member jointed ll. Incombination with two supportin thereto. a caster wheel supporting the rear ground wheels, an offset axle between sai frame member, means for adjusting said j wheelswtwo plow beams supported from the 75 frame members to different relative angles, l'offset portions of the vaxles so as to swin a' ground wheel at either side ot' said cenlongitudinally beneath same, and a rigi t'al ground wheel. and an offset axle for connection between the two plow beams. each of the outer ground -wheels connected 4l5. In combination with two supportin to s aid frontI frame member a ay from the ground wheels, an offset axle between sai 30 axle ot' the central ground wheel. u wheels, two plow beamssupported from the 10. In combination with a central ground offset portions of the axles so as to swing wheel. a frame member in which said wheel transversely beneath same, and a rigid conis mounted, a rear frame member jointed Anection between the two plow beams.

2o thereto, a castenwheel supporting the rear 1G. In combination lwith three ground 35 frame member, means for adjusting said wheels substantially in alinement,a frame frame members to different relative angles. ficxiblj; connecting each of the outer wheels a ground wheel at either side of said central I and the central wheel to permit' 'vertical ground wheel', and an offset axle for each of movement of one wheel relatively to the the outer ground-wheels flexibly connected other, a plow beam suspended from the-axle 90 to said front frame member away from the between the central ground wheel and each axle of the central ground wheel. of the outer Ground wheels so as to swing 11. In combination with a central ground relativelvv to the axle, and a rigid A.connect-ion wheel, a frame member in which said ground between the plow beams.

o wheel mounted. said frame member being 17.*In combination with a central sup- 95 free to swing vertically, a ground wheel at porting member, a supporting member lo,- either side of said central wheel and in sub- -catedrearwardly thereof, a frame connect- Istantial alinement therewith, an axle -for ing said members, a supporting member areach of said side dround wheels, a part of ranged at either side of saidcentral member,

said axle being offset and connected to said` means flexibly connecting each of said side 10e frame member by a flexible connetion to supporting members to said cent-ral supportf permit verticall movement of one wheel with ingr member to permit relative verticalmoverespect to another. and a connection between ment of said members, and' connections besaid a'xle and said frame so that the axle tween said frame and said side supportin 10 may swing to and fro vertically with the membersl for causing them to carl .part 0% 105 frame. the weight while permitting Saidy vertical 12. In combination with a central ground moiement. wheeha frame member in which said ground 18. In combination with a central ground wheel is mounted, said frame member being wheel. rear caster wheels, a frame 'connecte 5 free to swing vertically, a rear frame meming said'. ground wheel and rear caster 110 ber jointed to said frame member, means for wheels. two outside ground wheels, flexible adjusting said frame members to different connections between said three ground wheels relative angles. a supporting and progressfor permitting relative. vertical movement ing device attached to the rear frame mcm- I thereof. and connections between the frame 50..ber. and a plow at cach side of the central i and the outer ground wheels for lacing ail -wheel supported to be raised or lowered as part of the weight upon them whi ef-permitthe relative angle between the parts of the ting said relative vertical movement. frame is changed. L 1S). In combination with central ground 13. ln combination 'with a central ground wheel. rear caster wheels, a frame connectwheeha t'ramem mber in which said ground ing said ground wheel and rear easter 120 `wheel is mounte( ,said frame member being wheels. two outside ground wheels, flexible free to swing/vertically. a rear frame memconnections between said three round ber/jointed -to said frame member,',means 'wheels for permittingrelative vertica movefor adjusting said frame members to differment thereof. and connections between theA ent relative angles, a supporting device atframe and the outer ground wheels for plac- 125 tached to the rear frame memberra ground ing a part of the weightupon them while wheel aty either side of said central wheel permitting said relative Vertical movement. and in substantial alinement therewith. an 20.' In combination withJacentral ground f M axle for each of said side giound wheels, a wheel, rear caster wheels, a frame connects/I T part of said axle beingbffset and connected A ing said ground wheel. rear Easter 1,30v

wheels comprising two members connected so as to be adjusted at various vertical angles with respect to each other, pivotal connections between the rear of the frame and said rear caster wheels, two outside ground wheels, flexible connections between said three ground wheels for permitting relative vertical movement thereof, and connections between the frame and the outer ground wheels for placing a part of the weight upon them while permitting said relative vertical movement.

21. In combination with a central ground `wheel, rear caster wheels, a yoke frame member extending rearwardly in which the central ground wheel is carried, two outside ground wheels, an offset axle flexibly coni necting each of said ground wheels to the yoke traine member, weight carrying menibers connecting the caster wheels to the axles,l and a rear frame member pivotally connected to the said yoke -frame member and to the said weight carrying members.

22. In combinationV with three ground wheels substantially in alinement, front and rear frame members jointed together on a horizontal transverse axis, oliset axle members flexibly connecting the outer grouiul wheels to the jointed frame, rear caster wheels, weight carrying members connecting the caster wheels to said axles, and a pivotal connection between said weight carrying members and the rear end of the rear trame member.

23. In combination with three ground wheels substantially in alinement, front and rear frame members jointed together on a horizontal transverse axis, means for adjusting said members to litter-ent relative angles to raise and lower the plow, a plow suspended at each side ot' the central grund wheel, otl`set axle members flexibly connecting the outer ground wheels to the jointed traine, rear easter wheels, weight carrying members connecting the easter wheels to said axles, and a pivotal connection between said weight carryingv members and the rear end .of the rear f aine member.

Beer AVAILABLE corrj 24. In combination with three ground wheels substantially in alinement, front andrear frame members jointed' together on a horizontal transverse axis, means for adjusting said members to different relative angles to raise and lower the plow, a plow suspended at each side of the central ground wheel, offset axle members flexibly connecting the outer ground wheels to the jointed frame, rear easter wheels, weight carrying members connectin@r the caster wheels to the offset. portion o? said axles, and a pivotal connection between said weight carrying members and the rear end of the rear 'frame member.

25. In combination with a central and two side ground wheels, a wheel frame compris ing front and rear members jointed together on a horizontal transverse axis, the'torwurd member being supported by the axle ot' the central ground wheel, an odset axle connect ing an outer ground wheel and the said frame member at a point away from the axis of the central ground wheel, and means for changing the relative position of said forward trame member and the oi'set por tion of t-he axle.

2G. In combination with a central and two side ground wheels, a wheel frameeoniprising t'ront and rear members jointed `together on a horizontal transverse axis, means 'for'.

changing the angular position of the front and rear frame members, the forward member being supported by the axle of the cen-' tral ground wheel, an offset axle connecting an outer ground wheel and Said frame member at a point away from the axis of the central ground wheel, and means for changing the relative angular position of said forward 'frame member and the ottset portion ot' the axle.

ln testimony whereof I hereunto set my hand this fourth day of November, 1908, in the 'presence of two attesting witnesses.

ALEXUS C. LIN DGREN.

Witnesses J. L. IRVING, L. C. BLANDING. 

